you can't magic a billion people into the middle class lifestyle, but you can use a gun to keep them away from it.
i have no doubt those field workers in China would prefer the wages available to field workers in America, and if they could move to take advantage of that, they would.
We only have to look at Mexican field workers crossing into the US to see this is true. Though the New York Times reported that the number of Mexicans entering the US illegally for the first time has fallen from 525,000 in 2000 to fewer than 100,000 in 2010. The ROI for working in the US is lower, given the US's economical and political environment and Mexico's improving work opportunities.
i have no doubt those field workers in China would prefer the wages available to field workers in America, and if they could move to take advantage of that, they would.